<s>
Telepointer	B-General_Concept
is	O
a	O
neck-worn	O
gestural	B-General_Concept
interface	I-General_Concept
system	O
developed	O
by	O
MIT	O
Media	O
Lab	O
student	O
Steve	O
Mann	O
in	O
1998	O
.	O
</s>
<s>
Mann	O
developed	O
a	O
laser-based	O
infinite	O
depth-of-focus	O
projector	O
,	O
called	O
an	O
"	O
aremac	O
"	O
,	O
to	O
project	O
onto	O
any	O
3D	O
surface	O
without	O
focus	O
adjustment	O
The	O
projector	O
originally	O
displayed	O
vector	O
graphics	O
rather	O
than	O
raster	B-Algorithm
graphics	I-Algorithm
.	O
</s>
<s>
A	O
raster	B-Algorithm
graphics	I-Algorithm
version	O
based	O
on	O
a	O
miniature	O
wearable	O
micromirror	O
projector	O
was	O
developed	O
in	O
2001	O
,	O
which	O
could	O
project	O
onto	O
the	O
wearer	O
's	O
hands	O
,	O
other	O
objects	O
,	O
or	O
the	O
floor	O
or	O
ground	O
allowing	O
it	O
to	O
work	O
with	O
both	O
hand	O
or	O
foot	O
gestures	O
.	O
</s>
